Birthday Girl

Birthday Girl

by Penelope Douglas

4.3 (117,200)

4.3 stars from 117,200 reviews. One of the highest rated Contemporary Fiction books we track.

593 pages~9.9 hr readPublished by Penelope Douglas LLCPublished 2023-08-31Language: ES

$4.99At peak price

Last checked: Apr 5, 2026

Must ReadHighly rated with thousands of reviews. A proven favourite.
Price history: Free $4.99Last free: 2025-09-19

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Fans of these authors will like this...

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Perfect for you if...

  • You enjoy forbidden romance with a significant age gap and the tension of rules that shouldn't be broken.
  • You love Penelope Douglas's character-driven storytelling and the slow burn of attraction between complex, flawed people.
  • You want a contemporary romance that doesn't shy away from messy family dynamics and moral grey areas.

Maybe not for you if...

  • You're uncomfortable with age-gap relationships or large power imbalances between romantic leads.
  • You prefer romance where the couple is free to pursue each other without external obstacles or ethical complications.
  • You're looking for a light, feel-good romance without dark themes or complicated family entanglements.

About this book

Birthday Girl is a contemporary romance novel told from dual perspectives. Jordan finds herself living with Pike Lawson after having nowhere else to go. She develops feelings for him, appreciating how he treats her with care and attention. However, she recognizes the situation is complicated and believes it cannot happen between them. Pike initially took Jordan in thinking it would be a simple arrangement. As time passes, he finds himself increasingly drawn to her and struggles to maintain distance. He recognizes they cannot act on their feelings. Their connection is further complicated by their age difference—she is nineteen and he is thirty-eight—and by the fact that her boyfriend and his father have also moved into Pike's house. The novel is a stand-alone story intended for readers 18 and older.

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Price History

Kindle price over time. Green zones = periods when the book was free.

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Free$2.50$4.99Mar '21Dec '22Apr '23Jun '25
Free$4.99· Last free: 2025-09-19

Price has dropped 9 times over the last 5 years. Goes on sale roughly every 179 days. Typically stays discounted for 3 days.

Sales Rank

Amazon sales rank: lower number = better selling book. #1 is the bestseller.

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#51#2,505#4,959Jun '18May '22Jun '23Apr '26

Currently #570 in the Kindle store — a top-1,000 bestseller.

Rating & Reviews

Purple line = star rating over time. Blue area = total review count growth.

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3.5★4.3★5.0★May '23Nov '23Aug '24Feb '26RatingReviews

Currently 4.3★ from 117,200 reviews

Gaining approximately 2,052 new reviews per month. Reader interest is surging. Rating has dipped slightly from 4.4 to 4.3.

Sale Prediction

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Free$2.50$4.99Mar '21Dec '22Apr '23Jun '25PredictedSep '25

Actual Predicted

Based on past patterns, a price drop could happen soon. It typically goes on sale every 179 days and the last drop was 260 days ago. It has gone completely free in the past.

Prices shown in USD from Amazon US. We continuously pull new data to improve tracking. If dates look old, it usually means there has been no significant change since the last data point.

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Penelope Douglas

4 books on Vagrant Press

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